Cooperative Extension Service

Management of Alternative On-Site Wastewater Systems - A Case Study

North Gloucester Pilot On-Site Systems
Treatment Systems Performance

ParametersRSFISFBio- FilterBioclereRTF*
** Colburn St. Langsford St. Washington St. Bittersweet Rd. High St. Vale Ct. Brierwood St.
Total-N...................IN
(mg/l)...................OUT
...........................% Rem.		 95.6
60.8
36		 153.3
78.6
49		 76.2
61.3
20		 78.1
55.9
28		 39.3
26.8
32		 78.4
29.2
63		 32.1
22.1
71
Total-P....................IN
(mg/l)...................OUT
..........................% Rem.		 8.7
3.0
66		 16.7
5.1
69		 11.4
8.3
27		 7.8
8.4
N.A.		 7.5
6.4
15		 10.0
4.8
52		 6.5
4.5
53
MGAS.....................IN
(mg/l)...................OUT ..........................% Rem.		 18.1
0.3
98		 23.1
2.1
9.1		 N.A.
N.A.
N.A.		 N.A.
N.A.
N.A.		 6.4
0.5
92		 15.2
1.1
93		 N.A.
N.A.
N.A.
F. Colif....................IN 323,582 938,627 211,584 99,628 155,452 1,489,019 70,399

Coin./100ml).....OUT
..........................% Rem.		 10,285
97		 7,189
99		 5,182
98		 1,377
99		 7,407
95		 121,943
92		 23,018
67


RSF = Recirculating Sand Filter
ISF = Intermttent Sand Filter
Bio-Filter = Waterloo Bio-Filter
IN = Septic Tank Effluent (except for Brierwood Site).
OUT = Treated Effluent (Before Leachfield, Except for Brierwood Site).
Bioclere = AWT Bioclere
RTF = ORENCO Trickling Filter
*RTF is installed in the septic tank and discharges to a sand- lined bed;
Samples are collected at the tank outlet & at the bottom of the bed.

Please address any questions to Dr. David Lindbo, Assistant Professor, Extension Specialist.

This page (http://plymouth.ces.state.nc.us/septic/table4.html) created by
Vera MacConnell, Research Technician, I on November 15, 1996.
Last Updated on 3/29/05 by Roland O. Coburn, Research Tech I.

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